TL2842BDR-8

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low-dropout voltage regulator - Fixed output voltage of 8V - High accuracy and stability - Low quiescent current - Thermal shutdown protection - Short-circuit current limiting

Package: SOIC-8

Essence: The TL2842BDR-8 is a voltage regulator IC that provides a fixed output voltage of 8V. It is designed to regulate the input voltage and provide a stable output voltage for various electronic devices.

Packaging/Quantity: The TL2842BDR-8 is available in a small outline integrated circuit (SOIC) package, which consists of 8 pins. It is commonly sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 10V to 40V
• Output Voltage: 8V
• Dropout Voltage: 0.5V (typical)
• Quiescent Current: 3.5mA (typical)
• Output Current: Up to 1A
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TL2842BDR-8 has the following pin configuration:

```

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| | --| Vout Vin|-- --| GND EN |-- --| FB NC |-- |___________| ```

• Vout: Output Voltage
• Vin: Input Voltage
• GND: Ground
• EN: Enable Pin
• FB: Feedback Pin
• NC: No Connection

Functional Features

1. Low-Dropout Voltage: The TL2842BDR-8 exhibits a low dropout voltage, ensuring efficient regulation even when the input voltage is close to the desired output voltage.

2. High Accuracy and Stability: This voltage regulator provides a highly accurate and stable output voltage, minimizing fluctuations and ensuring reliable performance.

3. Low Quiescent Current: The IC has a low quiescent current, reducing power consumption and enhancing energy efficiency.

4. Thermal Shutdown Protection: It incorporates thermal shutdown protection, which safeguards the device from overheating and potential damage.

5. Short-Circuit Current Limiting: The TL2842BDR-8 features short-circuit current limiting to protect against excessive current flow during a short circuit condition.

Advantages and Disadvantages

Advantages: - Precise and stable output voltage - Low dropout voltage - Efficient power regulation - Thermal shutdown protection - Short-circuit current limiting

Disadvantages: - Fixed output voltage may limit flexibility in certain applications - Limited output current capacity (up to 1A)

Working Principles

The TL2842BDR-8 operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage of 8V. By continuously monitoring and regulating the input voltage, it compensates for variations and ensures a stable output.

Detailed Application Field Plans

The TL2842BDR-8 is widely used in various electronic devices and systems that require a regulated 8V power supply. Some common application areas include:

1. Consumer Electronics: Used in televisions, audio systems, and gaming consoles.
2. Automotive Electronics: Employed in car audio systems, infotainment systems, and lighting controls.
3. Industrial Control Systems: Utilized in motor drives, power supplies, and automation equipment.
4. Communications Equipment: Found in routers, switches, and network devices.
5. Medical Devices: Applied in medical instruments, patient monitoring systems, and diagnostic equipment.

Detailed and Complete Alternative Models

1. LM7808: A popular linear voltage regulator with a fixed 8V output.
2. LT1084: A high-performance linear regulator capable of delivering higher output currents.
3. TPS7A4700: A low-dropout voltage regulator with adjustable output voltage.
4. LM317: A versatile adjustable voltage regulator that can be configured for an 8V output.
5. MAX15007: A synchronous step-down DC-DC converter with an 8V fixed output.

These alternative models offer similar functionality and can be considered as substitutes for the TL2842BDR-8 in various applications.

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